i think many people who had had a voice chathave this proplem ,when we are talking ,sometimes we don't what to say ,and it's very hard to find something interesting to say ,in case ,you are in this situation now ,how will you deal with it?

just keep talking anything you want to say,such as the man who you meet today or the thing that you thought of at that time,sometime I also feel embarrassed when the people fall in silence,sometimes it is me who cann't go on...

but many times i feel very disappointed ,because many people it seems that don't like to talk to you ,it let you feel he/she feel talk to you it's very boring

其实你只是想和那个人练习口语而已，你不必顾及太多的！要不然你就再找一个人练习啊！其实交流可以随便换话题的，想聊什么就聊什么的，你不要刻意的去找话题聊的，刻意找话题反而不好！

I think keeping asking questions is a good way to continue the conversation. If you feel hard to continue the current topic, ask other questions to start new discussions.

I have the same puzzle，too.I always don't know what can say .But i really want to practice my english not only wirtten english but also oral english.